While there are hundreds of options, most enterprises end up looking at this short list of platforms and capabilities for workforce collaboration.

Last week I examined the leading and/or most established players in enterprise collaboration. This gallery summarizes the major options available today while also taking a look at their mobile capabilities, which are now relatively sophisticated except for a surprising omission.

Each enterprise collaboration platform is presented along with their mobile clients. Whenever possible, their relative popularity in terms of user ratings either in the App Store or Google Play is given, something which is a useful gauge on how easy they are to use, especially in terms of stability and frequency of update from the vendors.

These players cover the gamut from enterprise social networks (ESNs), to some form of content or document management system with social features, and/or an intranet/portal platform. Most of the options presented here offer a range of these capabilties but almost all of them focus primarily in one area or the other.

Finally, based on the e-mail I recieved from the original post, there's a lot of interest in taking a look at the 2nd tier of options, since innovation in collaboration seems to be continuing unabated and new entries emerge all the time. I will be assembling this list soon and posting it here. You can use my feedback form to submit any entries you'd like to see included.